BENFEI Active DVI-D to VGA Adapter, DVI-D 24+1 to VGA Male to Female Adapter

I had purchased this to place on an old Dell with a discrete graphics card, but no HDMI output (before HD's time). However, this card DID have a DVI output (old style - 24+5 pin, whereas this is 24+1 pin, and yet still works with that older connector) - and it was after using Benfei's cable that I learned how very underrated DVI output has actually been. This system went from outputting an 'ok' washed-out VGA signal, to outputting something RICH that really enhanced the viewing experiencing. Stronger contrast, greater detail, and more vivid colors. And this was still going from a DVI output from the PC to a VGA input on the monitor! It didn't seem to produce a degradation in quality. I didn't even know that was possible. So good job!

We are in the unusual position that the technology of our PC has outpaced the technology of our monitors. We use two VGA monitors on a PC with one HDMI and one DVI-D connector. This DVI-D to VGA adapter works perfectly for our application. The monitors may be old technology but they have sufficient resolution for our purpose. It is a real plus to be able to use them for another few years - thanks to this DVI-D adaptor.Further we have another PC connected to the monitor with a KVM switch. So our video system is VGA from the monitors through the KVM switch right up to the back of the PC - where the DVI-D adaptor takes over. KVM switches for VGA monitors are more readily available and far less expensive than HDMI or DVI KVM switches. This DVI-D adaptor has allowed us to reduce our costs for two pieces of equipment, the VGA monitor and the VGA KVM switch - much appreciated and highly recommended.

Previously I was using a Moread HDMI to VGA adapter and it worked on an old Windows install. I had it hooked up to my intel onboard video. Had to reinstall Windows and the Moread adapter shrank the image. No matter what I tried I couldn't fix this.I ended up ordering this Benfei DVI-D to VGA adapter. It was cheap and had good reviews. It worked as soon as I plugged it into my video card's DVI port. Very happy with this little adapter. If you need something that just works, get this!

It seemed to be bi-directional. I used it mostly to run a DVI signal from a GTX780 to a VGA cable. I used it shortly to run a VGA signal into a DVI input on a switch-box.

I might be doing something wrong. Got this converter to connect a new nVidia gt 1030 GPU to an existing Dell VGA monitor. The monitor has been working at 1920x1200 for over 5 yrs.I'm a Linux desktop user. No Windows.After connecting this adapter, only 1920x1080 is allowed by the nvidia driver. This is because the adapter EDID highest resolution is 1920x1080. In debug mode, the nvidia driver outputs all the EDID information that this adapter provides. Basically, it has resolutions from 1920x1080 down. Nothing higher, so nVidia GPUs won't use any resolution that isn't provided by the EDID information. I was stuck for a few weeks at 1080.I used another computer connected to the monitor over VGA which was working at 1200p resolution to pull the EDID data directly from the monitor. I took that data and put it into the computer in a binary/raw file and found the nvidia driver option to use it. That didn't work. Seems nvidia trusts what the hardware says over anything provided in the CustomEDID setting of the xorg.conf file.I kept searching for a solution. In the end, I had to tell the nvidia card to ignore the HW-provided EDID data, use the customEDID settings, and setup the highly specific "modelines" for each resolution I wanted to support. Basically, the monitor, this adpapter and my computer are extremely tightly coupled together now.For anyone else going though this, the xorg options you should customize are: Horizsync, VertRefresh, Modeline (I have 10 entries for these), CustomEDID, andOption "ModeValidation" "NoExtendedGpuCapabilitiesCheck"After forcing all these overrides, the EDID for my monitor was used and 1920x1200p resolution is working. I'm afraid to post too many details, because it is highly unlikely that anyone else would have the same card, same monitor, with the same timings. Using the wrong timings can harm a monitor. I haven't tried all the valid modes, but 1920x1200 is working nicely.[ 22.082] (II) NVIDIA(GPU-0): Mode "1920x1200_60" is valid.[ 22.082] (II) NVIDIA(GPU-0): Mode "1280x960_60" is valid.[ 22.083] (II) NVIDIA(GPU-0): Mode "1280x1024_60" is valid.[ 22.083] (II) NVIDIA(GPU-0): Mode "1600x1200_60" is valid.[ 22.083] (II) NVIDIA(GPU-0): Mode "1680x1050_60" is valid.[ 22.083] (II) NVIDIA(GPU-0): Mode "1920x1080_60" is valid.[ 22.083] (II) NVIDIA(GPU-0): Mode "640x480_60" is valid.[ 22.083] (II) NVIDIA(GPU-0): Mode "800x600_60" is valid.[ 22.083] (II) NVIDIA(GPU-0): Mode "1024x768_60" is valid.many more modes/resolution are listed as invalid now:[ 22.083] (WW) NVIDIA(GPU-0): Mode "800x600_56" is invalid.[ 22.083] (WW) NVIDIA(GPU-0): Mode "800x600_60" is invalid.[ 22.083] (WW) NVIDIA(GPU-0): Mode "800x600_72" is invalid.[ 22.084] (WW) NVIDIA(GPU-0): Mode "800x600_75" is invalid.[ 22.084] (WW) NVIDIA(GPU-0): Mode "800x600_85" is invalid.[ 22.084] (WW) NVIDIA(GPU-0): Mode "1024x768_87i" is invalid.[ 22.084] (WW) NVIDIA(GPU-0): Mode "1024x768_60" is invalid.[ 22.084] (WW) NVIDIA(GPU-0): Mode "1024x768_70" is invalid.[ 22.084] (WW) NVIDIA(GPU-0): Mode "1024x768_75" is invalid.[ 22.084] (WW) NVIDIA(GPU-0): Mode "1024x768_85" is invalid.[ 22.084] (WW) NVIDIA(GPU-0): Mode "1152x864_75" is invalid.[ 22.084] (WW) NVIDIA(GPU-0): Mode "1280x960_60" is invalid.[ 22.084] (WW) NVIDIA(GPU-0): Mode "1280x960_85" is invalid.[ 22.084] (WW) NVIDIA(GPU-0): Mode "1280x1024_60" is invalid.[ 22.084] (WW) NVIDIA(GPU-0): Mode "1280x1024_75" is invalid.[ 22.084] (WW) NVIDIA(GPU-0): Mode "1280x1024_85" is invalid.[ 22.084] (WW) NVIDIA(GPU-0): Mode "1600x1200_60" is invalid.[ 22.084] (WW) NVIDIA(GPU-0): Mode "1600x1200_65" is invalid.[ 22.084] (WW) NVIDIA(GPU-0): Mode "1600x1200_70" is invalid.But I bet all the 60hz modes could be forced with my Dell monitor.Summary: I wish the correct EDID was passed through from the VGA monitor so that none of the extra steps required had to be taken. OTOH, once again, the flexibility of Linux allowed a determined end-user to accomplish something unexpected.

Works as expected

Great for my streaming Activity if hooking up two monitors!

I've had this adapter for several years now and it is still working suggest anyone who needs this when they forget to check their monitors 😂